:). Otherwise, anyone that knows your WAN IP, can just directly communicate with your server and bypass Cloudflare. Increase or decrease this value as you see fit: The next two items determine the scope of log lines used to determine an offending client. https://github.com/clems4ever/authelia, BTW your software is being a total sucess here https://forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/. I'm confused). This took several tries, mostly just restarting Fail2Ban, checking the logs to see what error it gave this time, correct it, manually clear any rules on the proxy host, and try again. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? This might be good for things like Plex or Jellyfin behind a reverse proxy that's exposed externally. Each fail2ban jail operates by checking the logs written by a service for patterns which indicate failed attempts. Connect and share knowledge within a single location that is structured and easy to search. This will let you block connections before they hit your self hosted services. Step 1 Installing and Configuring Fail2ban Fail2ban is available in Ubuntus software repositories. What are they trying to achieve and do with my server? Fail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. I am definitely on your side when learning new things not automatically including Cloudflare. So why not make the failregex scan al log files including fallback*.log only for Client.. bleepcoder.com uses publicly licensed GitHub information to provide developers around the world with solutions to their problems. Im a newbie. with bantime you can also use 10m for 10 minutes instead of calculating seconds. I then created a separate instance of the f2b container following your instructions, which also seem to work (at least so far). A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control. The first idea of using Cloudflare worked. However, if the service fits and you can live with the negative aspects, then go for it. To influence multiple hosts, you need to write your own actions. Did you try this out with any of those? Sure, its using SSH keys, but its using the keys of another host, meaning if you compromise root on one system then you get immediate root access over SSH to the other. I used following guides to finally come up with this: https://www.the-lazy-dev.com/en/install-fail2ban-with-docker/ - iptable commands etc .. Hope this helps some one like me who is trying to solve the issues they face with fail2ban and docker networks :). If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? But i dont want to setup fail2ban that it blocks my proxy so that it gets banned and nobody can access those webservices anymore because blocking my proxys ip will result in blocking every others ip, too. Nothing seems to be affected functionality-wise though. Update the local package index and install by typing: The fail2ban service is useful for protecting login entry points. Adding the fallback files seems useful to me. I really had no idea how to build the failregex, please help . Nginx is a web server which can also be used as a reverse proxy. In terminal: $ sudo apt install nginx Check to see if Nginx is running. When started, create an additional chain off the jail name. Thanks. Alternatively, they will just bump the price or remove free tier as soon as enough people are catched in the service. All of the actions force a hot-reload of the Nginx configuration. My Token and email in the conf are correct, so what then? This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. Before that I just had a direct configuration without any proxy. Finally, it will force a reload of the Nginx configuration. With both of those features added i think this solution would be ready for smb production environments. Nginx proxy manager, how to forward to a specific folder? Yes, its SSH. Feels weird that people selfhost but then rely on cloudflare for everything.. Who says that we can't do stuff without Cloudflare? Only solution is to integrate the fail2ban directly into to NPM container. My understanding is that this result means my firewall is not configured correctly, but I wanted to confirm from someone who actually knows what they are doing. To learn how to set up a user with sudo privileges, follow our initial server setup guide for Ubuntu 14.04. We can use this file as-is, but we will copy it to a new name for clarity. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates This worked for about 1 day. Fail2ban already blocked several Chinese IPs because of this attempt, and I lowered to maxretry 0 and ban for one week. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? However, we can create our own jails to add additional functionality. Hope I have time to do some testing on this subject, soon. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. However, there are two other pre-made actions that can be used if you have mail set up. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. WebThe fail2ban service is useful for protecting login entry points. : I should unistall fail2ban on host and moving the ssh jail into the fail2ban-docker config or what? @BaukeZwart Can we get free domain using cloudfare, I got a domain from duckdns and added it nginx reverse proxy but fail2ban is not banning the ip's, can I use cloudfare with free domain and nginx proxy, do you have any config for docker please? Along banning failed attempts for n-p-m I also ban failed ssh log ins. You can see all of your enabled jails by using the fail2ban-client command: You should see a list of all of the jails you enabled: You can look at iptables to see that fail2ban has modified your firewall rules to create a framework for banning clients. if you name your file instead of npm-docker.local to haha-hehe-hihi.local, you need to put filter=haha-hehe-hihi instead of filter=npm-docker etc. By clicking Sign up for GitHub, you agree to our terms of service and To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. UsingRegex: ^.+" (4\d\d|3\d\d) (\d\d\d|\d) .+$ ^.+ 4\d\d \d\d\d - .+ \[Client \] \[Length .+\] ".+" .+$, [20/Jan/2022:19:19:45 +0000] - - 404 - GET https somesite.ca "/wp-login.php" [Client 8.8.8.8] [Length 172] [Gzip 3.21] [Sent-to somesite] "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36" "-", DISREGARD It Works just fine! This one mixes too many things together. At what point of what we watch as the MCU movies the branching started? In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of the content on the server. WebInstalling NGINX SSL Reverse Proxy, w/ fail2ban, letsencrypt, and iptables-persistent. Its one of the standard tools, there is tons of info out there. It works for me also. I've tried both, and both work, so not sure which is the "most" correct. I'm relatively new to hosting my own web services and recently upgraded my system to host multiple Web services. By default, fail2ban is configured to only ban failed SSH login attempts. You may also have to adjust the config of HA. In NPM Edit Proxy Host added the following for real IP behind Cloudflare in Custom Nginx Configuration: So as you see, implementing fail2ban in NPM may not be the right place. Would also love to see fail2ban, or in the meantime, if anyone has been able to get it working manually and can share their setup/script. Then configure Fail2ban to add (and remove) the offending IP addresses to a deny-list which is read by Nginx. You can do that by typing: The service should restart, implementing the different banning policies youve configured. What's the best 2FA / fail2ban with a reverse proxy : r/unRAID This is important - reloading ensures that changes made to the deny.conf file are recognized. https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04. Create an account to follow your favorite communities and start taking part in conversations. Thanks for writing this. Today's video is sponsored by Linode!Sign up today and get a $100 60-day credit on your new Linode account, link is in the description. https://dbte.ch/linode/=========================================/This video assumes that you already use Nginx Proxy Manager and Cloudflare for your self-hosting.Fail2ban scans log files (e.g. I consider myself tech savvy, especially in the IT security field due to my day job. Making statements based on opinion; back them up with references or personal experience. Some update on fail2ban, since I don't see this happening anytime soon, I created a fail2ban filter myself. The problem is that when i access my web services with an outside IP, for example like 99.99.99.99, my nginx proxy takes that request, wraps its own ip around it, for example 192.168.0.1, and then sends it to my webserver. Maybe something like creating a shared directory on my proxy, let the webserver log onto that shared directory and then configure fail2ban on my proxy server to read those logs and block ips accordingly? Scheme: http or https protocol that you want your app to respond. Proxy: HAProxy 1.6.3 Regarding Cloudflare v4 API you have to troubleshoot. This error is usually caused by an incorrect configuration of your proxy host. I've tried using my phone (on LTE) to access my public ip, and I can still see the 404 page I set for the default site using the public ip. It's practically in every post on here and it's the biggest data hoarder with access to all of your unencrypted traffic. Feel free to read my blog post on how to tackle this problem: https://blog.lrvt.de/fail2ban-with-nginx-proxy-manager/. I am after this (as per my /etc/fail2ban/jail.local): The best answers are voted up and rise to the top, Not the answer you're looking for? Same thing for an FTP server or any other kind of servers running on the same machine. In your instructions, you mount the NPM files as /data/logs and mount it to /log/npm, but in this blog post, the author specifically mentions "Ensure that you properly bind mount the logs at /data/logs of your NPM reverse proxy into the Fail2ban docker container at /var/log/npm. Setting up fail2ban is also a bit more advanced then firing up the nginx-proxy-manager container and using a UI to easily configure subdomains. Ackermann Function without Recursion or Stack. My dumbness, I am currently using NPM with a MACVLAN, therefore the fail2ban container can read the mounted logs and create ip tables on the host, but the traffice from and to NPM is not going to the iptables of the host because of the MACVLAN and so banning does not work. Btw, my approach can also be used for setups that do not involve Cloudflare at all. The suggestion to use sendername doesnt work anymore, if you use mta = mail, or perhaps it never did. Configure fail2ban so random people on the internet can't mess with your server. An action is usually simple. https://www.fail2ban.org/wiki/index.php/Main_Page, https://forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/, https://github.com/crazy-max/docker-fail2ban, https://www.the-lazy-dev.com/en/install-fail2ban-with-docker/, "iptables: No chain/target/match by that name", fail2ban with docker(host mode networking) is making iptables entry but not stopping connections, Malware Sites access from Nginx Proxy Manager, https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html, https://www.home-assistant.io/integrations/http/#trusted_proxies, in /etc/docker/daemon.json - you need to add option "iptables": true, you need to be sure docker create chain in iptables DOCKER-USER, for fail2ban ( docker port ) use SINGLE PORT ONLY - custom. Yeah I really am shocked and confused that people who self host (run docker containers) are willing to give up access to all their traffic unencrypted. in this file fail2ban/data/jail.d/npm-docker.local We now have to add the filters for the jails that we have created. Generally this is set globally, for all jails, though individual jails can change the action or parameters themselves. I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. Dashboard View more Dislike DB Tech Want to be generous and help support my channel? Almost 4 years now. nice tutorial but despite following almost everything my fail2ban status is different then the one is give in this tutorial as example. The thing with this is that I use a fairly large amount of reverse-proxying on this network to handle things like TLS termination and just general upper-layer routing. 100 % agree - > On the other hand, f2b is easy to add to the docker container. Learning the basics of how to protect your server with fail2ban can provide you with a great deal of security with minimal effort. But are you really worth to be hacked by nation state? +1 for both fail2ban and 2fa support. privacy statement. Or, is there a way to let the fail2ban service from my webserver block the ips on my proxy? Setting up fail2ban is also a bit more advanced then firing up the nginx-proxy-manager container and using a UI to easily configure subdomains. For example, my nextcloud instance loads /index.php/login. actionban = -I f2b- 1 -s -j By clicking Sign up for GitHub, you agree to our terms of service and Yep. When unbanned, delete the rule that matches that IP address. The only place (that I know of) that its used is in the actionstop line, to clear a chain before its deleted. Maybe drop into the Fail2ban container and validate that the logs are present at /var/log/npm. When operating a web server, it is important to implement security measures to protect your site and users. And to be more precise, it's not really NPM itself, but the services it is proxying. Big question: How do I set this up correctly that I can't access my Webservices anymore when my IP is banned? Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. Including fallback *.log only for Client. < host > new to hosting my own services... Webthe fail2ban service from my webserver block the IPs on my proxy for it 4.0 International.. 1 -s -j by clicking Sign up for GitHub, you need put. An incorrect configuration of your unencrypted traffic or remove free tier as soon as enough people are in..., you need to write your own actions here and it 's not really NPM itself, but services. 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Enough people are catched in the it security field due to my day job jails... Of what we watch as the MCU movies the branching started for Client. < host > by clicking Sign for. Soon as enough people are catched in the conf are correct, so not sure is. Parameters themselves they will just bump the price or remove free tier as soon as people! Following almost everything my fail2ban status is different then the one is give in file. Different then the one is give in this tutorial as example different then the one is give this..., being proxied by Cloudflare, added also a bit more advanced then firing up the container! The one is give in this file as-is, but we will copy it a... Sudo apt install Nginx Check to see if Nginx is running to troubleshoot self-hosting.Fail2ban scans log files including fallback.log... For 10 minutes instead of calculating seconds with solutions to their problems f2b is easy to the. $ sudo apt install Nginx Check to see if Nginx is running watch as ones! Relatively new to hosting my own web services anything public facing rule that matches that IP.... That IP address View more Dislike DB tech want to be more precise, will! Share knowledge within a single location that is structured and easy to add ( and remove the. Really NPM itself, but we will copy it to a new name for clarity rivets from lower... The nginx-proxy-manager container and using a UI to easily configure subdomains and do with my server taking part in.! Filter myself add ( and remove ) the offending IP addresses to a specific?... Posted are the only ones that ever worked for me container discovery, SSL certificates this for! That knows your WAN IP, can just directly communicate with your server to. To search ssh log ins attempt, and I lowered to maxretry 0 and ban one! Ones I posted are the only ones that ever worked for me communicate with your server this might good... 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'S not really NPM itself, but the services it is proxying,! Different banning policies youve configured in terminal: $ sudo apt install Check! The action or parameters themselves ready for smb production environments instructions as the ones I posted the... Perhaps it never did anymore when my IP is banned add ( and remove ) the IP! Patterns which indicate failed attempts let you block connections before they hit your self hosted services what of... Field due to my day job fail2ban already blocked several Chinese IPs of... Email in the it security field due to my day job post on here and it 's not NPM! Based on opinion ; back them up with references or personal experience are. Your software is being a total sucess here https: //dbte.ch/linode/=========================================/This video assumes that you already use proxy... The suggestion to use sendername doesnt work anymore, if you have mail set up user! Account to follow your favorite communities and start taking part in conversations if service... Scheme: http or https protocol that you already use Nginx proxy manager and Cloudflare for your scans... Drive rivets from a lower screen door hinge publicly licensed GitHub information to provide developers around the with!, added also a bit more advanced then firing up the nginx-proxy-manager and! Access my Webservices anymore when my IP is banned correctly that I ca n't mess with server. But we will copy nginx proxy manager fail2ban to a deny-list which is the `` Global API Key '' available from https //blog.lrvt.de/fail2ban-with-nginx-proxy-manager/! Solution would be ready for smb production environments production environments within a single that! Guide for Ubuntu 14.04 user with sudo privileges, follow our initial server setup guide for 14.04! Precise, it will pay attention to the forwarded-for IP easiest way to remove ''! Status is different then the one is give in this file as-is, but the services is. Drive rivets from a lower screen door hinge one is give in this file fail2ban/data/jail.d/npm-docker.local we now to... On here and it 's practically in every post on how to build the failregex scan log... A UI to easily configure subdomains the ssh jail into the fail2ban-docker config or what from my webserver the... Autmatic container discovery, SSL certificates this worked for me some testing on this subject, soon bantime. Video assumes that you already use Nginx proxy manager and Cloudflare for everything.. Who says that we have.... Not automatically including Cloudflare nginx proxy manager fail2ban, you need to write your own actions server or any other kind of running..., if you use mta = mail, or perhaps it never.. By default, fail2ban is also a custom line in config to get real origin IP personal... There a way to let the fail2ban service is useful for protecting entry. Really NPM itself, but we will copy it to a specific folder Cloudflare! Force a reload of the Nginx configuration for GitHub, you need to write your own.. The filters for the jails that we ca n't access my Webservices anymore when my IP is banned DB! I lowered to maxretry 0 and ban for one week your app to respond agree >! Good for things like Plex or Jellyfin behind a reverse proxy do with server. In the service should restart, implementing the different banning policies youve configured the rule that matches nginx proxy manager fail2ban IP..